Most Talked-About Couples

Some are hush-hush, some surprise us, and others are just hot, hot, hot. Take a peek at the most fascinating celebrity duos.

PLAYFUL PAIR

After his breakup with Britney, it was hard to guess who Justin Timberlake's next ladylove would be. Cameron Diaz stepped into the role and, by all accounts, the duo (in Hollywood in September) is having a rollicking good time. "She takes care of him, and he looks after her, and it's so great," pal Pharrell Williams told PEOPLE in October.